Heap-based Buffer Overflow Affecting exiv2-libs package, versions <0:0.27.4-5.el8


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.15% (52nd percentile)

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  • Snyk IDSNYK-ALMALINUX8-EXIV2LIBS-5656841
  • published28 May 2023
  • disclosed9 Nov 2021

Introduced: 9 Nov 2021

CVE-2021-29457  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 exiv2-libs to version 0:0.27.4-5.el8 or higher.
This issue was patched in ALSA-2021:4173.

NVD Description

Note: Versions mentioned in the description apply only to the upstream exiv2-libs package and not the exiv2-libs package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A heap buffer overflow was found in Exiv2 versions v0.27.3 and earlier. The heap overflow is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as insert. The bug is fixed in version v0.27.4.

CVSS Scores

version 3.1